Hormones
The surge is what ovulation predictor kits detect, and it is the physiological event a trigger injection imitates in treatment cycles. A premature surge during stimulation is prevented with a GnRH antagonist or agonist.
Also known as: surge, positive ovulation test
Related Canada guides
Sources
- Society of Obstetricians and Gynaecologists of Canada (SOGC) patient information
Last reviewed: September 9, 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.